| Most common failures | No# failures |
|---|
| Brake pipe excessively corroded | 2523 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 1318 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 1270 |
| Headlamp aim out of alignment | 1198 |
| Windscreen wiper does not clear the windscreen effectively | 1147 |
| Registration plate lamp issues | 985 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 812 |
| Anti-lock braking system warning lamp indicates an ABS fault | 585 |
| Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3| | 495 |
| Rear Exhaust has a major leak of exhaust gases |7.1.2| | 404 |
| Registration plate issues | 382 |
| Centre Exhaust has a major leak of exhaust gases |7.1.2| | 375 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 371 |
| Emissions not tested |7.0| | 255 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 247 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 243 |
| Supplementary Restraint System warning lamp indicates a fault |5.4.2| | 207 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 177 |
| Rear fog lamp tell tale not working |1.3.1b| | 175 |
| Offside Track rod end ball joint has excessive play |2.2.B.1f| | 171 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 171 |
| Offside Drag link end ball joint has excessive play |2.2.B.1f| | 161 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 153 |
| Nearside Drag link end ball joint has excessive play |2.2.B.1f| | 151 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 150 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 142 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 138 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 135 |
| Brake hose excessively deteriorated | 135 |
| Windscreen has damage | 133 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 128 |
| Parking brake lever has no reserve travel |3.1.6b| | 125 |
| Nearside Front Drag link end ball joint has excessive play |2.2.B.1f| | 121 |
| Offside Front Drag link end ball joint has excessive play |2.2.B.1f| | 116 |
| Service brake: efficiency below requirements |3.7.C.1a| | 104 |
| Battery insecure |1.9.1| | 99 |
| Front brake disc in such a condition that it is seriously weakened | 97 |
| Rear Exhaust has part of the system excessively deteriorated |7.1.1a| | 95 |
| Parking brake: efficiency below requirements |3.7.B.7| | 90 |
| Horn not working |1.6.2a| | 85 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 84 |
| Rear brake disc in such a condition that it is seriously weakened | 77 |
| Offside Stop lamp not working |1.2.1b| | 77 |
| Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 73 |
| Nearside Side repeater not working |1.4.A.2c| | 73 |
| Offside Side repeater incorrect colour |1.4.A.2f| | 73 |
| Nearside Stop lamp not working |1.2.1b| | 72 |
| Supplementary restraint system warning lamp indicates a fault (7.1.6 (a)) | 72 |
| Brake performance not tested |3.7.A.1| | 71 |
| Nearside Side repeater incorrect colour |1.4.A.2f| | 71 |
| Centre Exhaust has part of the system excessively deteriorated |7.1.1a| | 70 |
| Service brake: efficiency below requirements |3.7.B.7| | 69 |
| Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2| | 65 |
| Offside Rear fog lamp not working |1.3.2b| | 62 |
| Exhaust has part of the system excessively deteriorated |7.1.1a| | 60 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 58 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 57 |
| Offside Side repeater not working |1.4.A.2c| | 56 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 55 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 52 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 52 |
| Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 50 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 50 |
| Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 47 |
| Windscreen wiper blade insecure | 45 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 44 |
| Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 44 |
| Offside Front Radius arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 43 |
| Offside Front Seat belt locking mechanism does not secure or release |5.2.5a| | 42 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 42 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 41 |
| Exhaust emissions carbon monoxide content excessive |7.3.B.1a| | 40 |
| Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.3.D.1| | 39 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 39 |
| Windscreen washer not working | 38 |
| Nearside Front Air suspension unit deteriorated and likely to fail |2.4.D.1b| | 35 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 35 |
| Nearside Front Radius arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 35 |
| Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 35 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 35 |
| Offside Front Anti-roll bar linkage fractured |2.4.G.1| | 34 |
| Nearside Rear Air suspension unit deteriorated and likely to fail |2.4.D.1b| | 34 |
| Offside Front Trailing arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 34 |
| Nearside Windscreen wiper blade deteriorated |8.2.2| | 33 |
| Offside Front Windscreen wiper blade deteriorated |8.2.2| | 33 |
| Nearside Front Windscreen wiper blade deteriorated |8.2.2| | 33 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 32 |
| Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e| | 32 |
| Nearside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 32 |
| Nearside Rear Stop lamp not working |1.2.1b| | 32 |
| Supplementary restraint system warning lamp indicates a fault |7.1.6 |a|| | 31 |
| Offside Obligatory mirror missing |8.1.1| | 31 |
| Offside Front Ball joint has excessive play |2.2.B.1f| | 31 |
| Offside Windscreen wiper blade deteriorated |8.2.2| | 31 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 31 |
| Brakes imbalanced across an axle | 31 |
| Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 31 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 30 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 30 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 30 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 30 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 30 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 30 |
| Offside Front Lower Front suspension ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2| | 29 |
| Offside Rear Air suspension unit deteriorated and likely to fail |2.4.D.1b| | 29 |
| Offside Rear Direction indicators incorrect colour |1.4.A.2f| | 29 |
| Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a| | 29 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 29 |
| Rear brake binding | 28 |
| Offside Rear Exhaust has a major leak of exhaust gases |7.1.2| | 28 |
| Ball joint has excessive play |2.2.B.1f| | 28 |
| Offside Front Lower Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2| | 28 |
| Drag link end ball joint has excessive play |2.2.B.1f| | 28 |
| Offside Front constant velocity joint gaiter split |2.5.C.1a| | 28 |
| Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 28 |
| Offside Rear Wheel nut|s| missing |4.2.A.1e| | 27 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 27 |
| Nearside Rear Wheel nut|s| missing |4.2.A.1e| | 27 |